APA (7th ed.) Citation

Pollard, S. (1971). The idea of progress: History and society. Penguin Books.

Chicago Style (17th ed.) Citation

Pollard, Sidney. The Idea of Progress: History and Society. Harmondsworth [u.a.]: Penguin Books, 1971.

MLA (8th ed.) Citation

Pollard, Sidney. The Idea of Progress: History and Society. Penguin Books, 1971.